This circuit operates at a voltage of 1.3 V from a single mercury cell. We found in an old documentation and for the components used the frequency is 500 kHz.
This voice scrambler is used to obtain effects in the 2.5 to 5 kHz range. The circuit is from...
The circuit presented shows how to use a diode in temperature compensation of a push-pull output...
This circuit is ideal for recovering vinyl media with a linear response from the RIAA curve of the...